11:30 AM - 11:45 AM
[MIS19-10] Climate and geochemical controls on soil phosphorus in Bornean tropical rainforest soils
Keywords:Phosphorus, 31P liquid-state NMR spectroscopy, Tropical forest ecosystems, Biogeochemical cycling, Ultramafic rock
Here we examined how climate and parent materials control soil P in tropical rainforest ecosystems on Mt. Kinabalu, northeastern Borneo. We selected the sites developed on two chemically-contrasting rock types (ultramafic igneous and acidic sedimentary rocks) along an elevation gradients. We will present the results of soil P concentration (relative to C and N) as well as P forms assessed by liquid-state 31P NMR spectroscopy using NaOH/EDTA extracts.